| 摘要 |
#CMT# #/CMT# The system (1) has a communication master (3) to maintain a routing table that stores logical connections (16-19) between local modules (70-91) in accordance with a safety-related function. The communication master controls automatic routing of data from a transmitting module to a receiving module, such that each communication among the modules of one logical group occurs through point-to-point connections (10-15). The receiving module performs a safety-related action according to the received data. A communication network (2) retrieves information from the modules for establishing the table. #CMT# : #/CMT# An independent claim is also included for a method for monitoring safety functions in an automation system. #CMT#USE : #/CMT# Automation bus system. Uses include but are not limited to INTERBUSsystem, PROFIBUSsystem, PROFINETsystem, DeviceNetsystem and Ethernetinternet protocol system. #CMT#ADVANTAGE : #/CMT# The system simplifies installation and development of safety-related modules in an automation network. The system utilizes safety functions, which are divided into small, manageable, locally delimitable and simply verifiable groups of modules, so that groups of modules perform the safety-related action in the overall communications network. The system performs error-proof communication between the local safety modules to ensure the overall safety function. The system can be modified and extended easily without requirement to re-verify system parts. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic block diagram of an automation network of an automated manufacturing system. 1 : Automation bus system 2 : Communication network 3 : Communication master 10-15 : Point-to-point connections 16-19 : Logical connections 70-91 : Local modules #CMT#INDUSTRIAL STANDARDS : #/CMT# The safety functions conform to IEC 61508and ISO 13849standards. |
